Publication detail

Optical, mechanical and fractographic response of transparent alumina ceramics on erbium doping

DRDLÍK, D. DRDLÍKOVÁ, K. HADRABA, H. MACA, K.

Original Title

Optical, mechanical and fractographic response of transparent alumina ceramics on erbium doping

Type

journal article in Web of Science

Language

English

Original Abstract

Alumina ceramics found their utilisation in many applications which can be further extend by attaining functional properties; in our case the transparency obtained through precise processing and photoluminescence due to erbium (Er) doping. In order to examine the optical, mechanical and fractographic response of transparent alumina on Er doping, slip casted samples containing 0–0.15 at.% of erbium nano-oxide were pre-sintered by two-step sintering regime and then hot isostatically pressed. Prepared samples exhibited fully dense submicron microstructure and corresponding high transparency (RIT up to 60%). Positive influence of doping on the Vickers hardness resulted in values up to 27 GPa (at 10 N load). Moreover, the comparison of the Vickers hardness determined at different loadings with literature data showed that the Er doped alumina is one of the hardest material in this category. The samples were characterised also in terms of fracture toughness and fractographic behaviour.

Keywords

Alumina; Erbia; Transparency; Hardness; Fractography

Authors

DRDLÍK, D.; DRDLÍKOVÁ, K.; HADRABA, H.; MACA, K.

Released

1. 11. 2017

Publisher

Elsevier

ISBN

0955-2219

Periodical

Journal of the European Ceramic Society

Year of study

37

Number

14

State

United Kingdom of Great Britain and Northern Ireland

Pages from

4265

Pages to

4270

Pages count

6

URL

http://www.sciencedirect.com/science/article/pii/S0955221917301188

Full text in the Digital Library

http://hdl.handle.net/11012/70000

BibTex

@article{BUT138891,
  author="Daniel {Drdlík} and Katarina {Drdlíková} and Hynek {Hadraba} and Karel {Maca}",
  title="Optical, mechanical and fractographic response of transparent alumina ceramics on erbium doping",
  journal="Journal of the European Ceramic Society",
  year="2017",
  volume="37",
  number="14",
  pages="4265--4270",
  doi="10.1016/j.jeurceramsoc.2017.02.043",
  issn="0955-2219",
  url="http://www.sciencedirect.com/science/article/pii/S0955221917301188"
}